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1、ResearchContrastingcadmiumresistancestrategiesintwometallicolouspopulationsofArabidopsishalleri1234,56MassimilianoCorso,M.SolSchvartzman,FlaviaGuzzo,FlorenceSouard,EugeniuszMalkowski,21MarcHanikenneandNathalieVerbruggen12LaboratoryofPlantPhysiologyandMolecularGenetics,Universite
2、LibredeBruxelles,1050Brussels,Belgium;InBioS-PhytoSystems,FunctionalGenomicsandPlantMolecularImaging,34UniversityofLiege,B-4000Liege,Belgium;DepartmentofBiotechnology,UniversityofVerona,37134Verona,Italy;DepartementdePharmacochimieMoleculaire,CNRSUMR5063,5UniversityGrenobleAl
3、pes,38400,StMartindHeres,France;LaboratoiredePharmacognosie,deBromatologieetdeNutritionHumaine,UniversiteLibredeBruxelles,1050Brussels,6Belgium;DepartmentofPlantPhysiology,FacultyofBiologyandEnvironmentalProtection,UniversityofSilesiainKatowice,40-032Katowice,PolandSummaryAutho
4、rforcorrespondence:Whilecadmium(Cd)toleranceisaconstitutivetraitintheArabidopsishallerispecies,CdNathalieVerbruggenaccumulationishighlyvariable.RecentadaptationtoanthropogenicmetalstresshasoccurredTel:+3226502128independentlywithinthegeneticunitsofA.halleriandtheevolutionofdiffe
5、rentmechanismsEmail:nverbru@ulb.ac.beinvolvedinCdtoleranceandaccumulationhasbeensuggested.Received:8September2017TogainabetterunderstandingofthemechanismsunderlyingCdtoleranceandaccumula-Accepted:5November2017tioninA.halleri,ionomicinductivelycoupledplasmamassspectrometry(ICP-MS
6、),transcrip-tomic(RNAsequencing)andmetabolomic(high-performanceliquidchromatography–massNewPhytologist(2017)spectrometry)profileswereanalysedintwoA.hallerimetallicolouspopulationsfromdifferentdoi:10.1111/nph.14948geneticunits(PL22fromPolandandI16fromItaly).ThePL22andI16population
7、swerebothhypertoleranttoCd,butPL22hyperaccumulatedCdwhileI16behavedasanexcluderbothinsituandwhengrownhydroponically.TheKeywords:Arabidopsis,cadmiumexclusion,cadmiumhyperaccumulation,ionomic,observedhyperaccumulatorvsexcluderbehaviourswereparalleledbylargedifferencesinthemetabolom
8、ic,phenylpropanoids,RNAexpressionprofiles
